Scoliosis Management

Introduction to Scoliosis

• Scoliosis is a medical condition that affects the spine, with idiopathic scoliosis accounting for 75-80% of all scoliosis cases in teenagers, particularly affecting females at a 10:1 ratio compared to males for developing larger curves, as noted by the American College of Radiology 1
• Marfan syndrome, Ehlers-Danlos syndrome, and osteogenesis imperfecta are associated with scoliosis, as reported by the American College of Radiology 1
• Neurofibromatosis type 1 (NF1) can cause both dystrophic and non-dystrophic forms of scoliosis 2
• Intraspinal abnormalities, such as Chiari I malformation, syringomyelia, tethered cord, and intrinsic spinal cord tumors, are found in 2-4% of "idiopathic" cases, according to the American College of Radiology 1

Radiographic Evaluation

• A standard scoliosis series should be performed with standing full-spine radiographs (posteroanterior and lateral views) to properly evaluate curve severity, pattern, and sagittal balance, as recommended by the American College of Radiology 1
• PA (posteroanterior) technique should be used instead of anteroposterior views to reduce breast radiation exposure, as suggested by the American College of Radiology 1
• Lateral radiographs are recommended on initial examination and subsequently only when changes in sagittal balance occur, as recommended by the American College of Radiology 1
• Lower-dose radiography techniques, including computed or digital radiography, should be employed to reduce radiation exposure, as recommended by the American College of Radiology 1
• Biplanar slot scanners may be used to further reduce radiation exposure, according to the American College of Radiology 1
• Separate cervical, thoracic, and lumbar X-rays are not recommended because they fail to capture the entire spine in a single image, making accurate Cobb angle measurement impossible, and prevent evaluation of pelvic parameters and the Risser index, as noted by the American College of Radiology 1

Advanced Imaging

• MRI is recommended when intraspinal abnormalities are suspected, such as Chiari malformation, syringomyelia, or tethered cord, as suggested by the American College of Radiology 1
• CT is recommended for presurgical planning, surgical navigation, or when MRI is contraindicated, according to the American College of Radiology 1
• Bone scan is recommended in cases of painful scoliosis where primary bone tumors or infection are suspected, as recommended by the American College of Radiology 1

Treatment Goals and Approach

• The goals of treatment include preventing further curve progression, correcting existing deformity when possible, improving trunk balance and cosmesis, preventing potential long-term complications of untreated severe scoliosis, and improving pain and self-image, as reported by the American College of Radiology 1
• The following table summarizes the treatment goals:

• Bracing is the primary treatment approach for moderate scoliosis (curves between 20-50 degrees in skeletally immature patients) to prevent curve progression and potentially avoid the need for surgery, with documented curve progression of ≥5° on serial radiographs, curve magnitude between 20-50°, skeletal immaturity (Risser sign ≤2), and age ≥10 years 3
• Surgery is considered medically necessary when the curve is greater than or equal to 40 degrees in an adolescent younger than 18 years, according to the Aetna Clinical Policy Bulletin 4
• The American College of Radiology guidelines recommend surgical intervention for adolescent idiopathic scoliosis when curves exceed 50 degrees, there is documented progression despite conservative treatment, or significant pain, cosmetic concerns, or respiratory compromise are present 1

Surgical Approach and Postoperative Care

• The optimal surgical approach for levoconvex scoliosis with apex at L1 can be used for any segment of the spine, allows for extensive correction of deformity, and enables multi-level fusion when needed, but it is more painful due to muscle dissection and has a higher risk of poor wound healing and infection in recumbent patients 5
• Autologous bone (iliac crest or ribs) is preferred when possible, cadaveric allograft is an acceptable substitute, and bone growth promoters (tricalcium phosphate derivatives or bone morphogenic protein) can supplement fusion 5
• Pedicle screw fixation provides superior three-dimensional correction and rod configuration should address both the coronal and sagittal deformities 5
• Comprehensive imaging (standing full-spine radiographs, MRI, CT if needed) is essential for preoperative planning, as well as pulmonary function testing for severe curves and assessment for potential intraspinal abnormalities 5
• Aggressive airway clearance, appropriate respiratory support, early mobilization, and regular follow-up to monitor correction maintenance are crucial for postoperative care 5
• Essential postoperative care for scoliosis patients includes aggressive airway clearance, appropriate respiratory support, and follow-up with a pulmonologist to optimize respiratory management and prevent complications, as recommended by the American Thoracic Society 6

Pain Management and Lifestyle Modifications

• The American College of Rheumatology recommends NSAIDs/COXIBs at maximum tolerated dosage for pain relief, with short courses of oral prednisolone considered as a bridging option for severe pain, and avoidance of long-term use of glucocorticoids, for patients with severe scoliosis 7
• Consider taking prescribed pain medications preemptively when weather changes are forecast, to better manage pain flare-ups associated with weather changes 8, 9
• Maintaining normal physical activity while avoiding activities that increase asymmetric loading on the spine and limiting high-impact activities in patients with progressive curves are recommended, as per the American College of Radiology 1
• Patients with associated respiratory issues should avoid competitive sports, according to the American Heart Association 10
• Avoid using ice or cold water immersion, which can worsen symptoms in hEDS, as advised by the Mayo Clinic Proceedings 9

Common Pitfalls and Considerations

• Delayed referral, inadequate monitoring, inconsistent brace wear, overlooking non-idiopathic causes, and neglecting psychological impact are common pitfalls in scoliosis treatment, as noted by the American College of Radiology 1
• Increased humidity causes subtle tissue swelling, compressing already compromised neural structures in narrowed spinal canals, as noted in Pediatrics 4
• The drop in barometric pressure that precedes rain allows tissues to expand slightly, increasing pressure on pain-sensitive structures like nerve roots and joint capsules, according to the Mayo Clinic Proceedings 9